AR and alveolar rhabdomyosarcoma: As an initial evaluation of the potential importance of AR in DSRCT, we used a set of gene expression data from fusion-positive sarcomas to compare the expression of AR in DSRCT (n = 28) to alveolar rhabdomyosarcoma (ARMS; n = 23), alveolar soft part sarcoma (ASPS; n = 12), Ewing sarcoma (ES; n = 28), and synovial sarcoma (SS; n = 46)17.